Trace number 235368

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
VALCSP 3.0? (MO) 104.624 105.25

General information on the benchmark

Nametaillard/
os-taillard-10/os-taillard-10-95-8.xml
MD5SUM014487bc1152992590afac1666edece7
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark26.72
SatisfiableNO
(Un)Satisfiability was proved
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size565
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node20/watcher-235368-1168337462 -o ROOT/results/node20/solver-235368-1168337462 -C 1800 -M 900 /tmp/evaluation/235368-1168337462/VALCSP /tmp/evaluation/235368-1168337462/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 2.00 1.97 1.83 4/94 11776
/proc/meminfo: memFree=1089808/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=1468 CPUtime=0
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 118 0 0 0 0 0 0 0 20 0 1 0 182140759 1503232 96 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134545807 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 367 96 62 8 0 39 0

[startup+0.10408 s]
/proc/loadavg: 2.00 1.97 1.83 4/94 11776
/proc/meminfo: memFree=1089808/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=3976 CPUtime=0.09
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 723 0 0 0 9 0 0 0 20 0 1 0 182140759 4071424 701 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 994 701 64 8 0 666 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3976

[startup+0.512127 s]
/proc/loadavg: 2.00 1.97 1.83 4/94 11776
/proc/meminfo: memFree=1089808/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=7144 CPUtime=0.49
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 1544 0 0 0 49 0 0 0 24 0 1 0 182140759 7315456 1522 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530350 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 1786 1522 64 8 0 1458 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 7144

[startup+1.33323 s]
/proc/loadavg: 2.00 1.97 1.83 4/94 11776
/proc/meminfo: memFree=1048720/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=14008 CPUtime=1.31
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 3247 0 0 0 130 1 0 0 25 0 1 0 182140759 14344192 3225 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530886 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 3502 3225 64 8 0 3174 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 14008

[startup+2.97042 s]
/proc/loadavg: 2.00 1.97 1.83 4/94 11776
/proc/meminfo: memFree=1025104/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=28528 CPUtime=2.94
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 6871 0 0 0 291 3 0 0 25 0 1 0 182140759 29212672 6849 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 7132 6849 64 8 0 6804 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 28528

[startup+6.25882 s]
/proc/loadavg: 2.00 1.97 1.83 4/94 11776
/proc/meminfo: memFree=955856/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=55192 CPUtime=6.21
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 13529 0 0 0 615 6 0 0 25 0 1 0 182140759 56516608 13507 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530223 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 13798 13507 64 8 0 13470 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 55192

[startup+12.7176 s]
/proc/loadavg: 2.08 1.99 1.83 4/94 11776
/proc/meminfo: memFree=864976/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=109576 CPUtime=12.64
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 27128 0 0 0 1250 14 0 0 25 0 1 0 182140759 112205824 27106 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530283 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 27394 27106 64 8 0 27066 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 109576

[startup+25.5491 s]
/proc/loadavg: 2.22 2.02 1.85 4/94 11776
/proc/meminfo: memFree=692752/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=223096 CPUtime=25.42
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 55529 0 0 0 2513 29 0 0 25 0 1 0 182140759 228450304 55507 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 55774 55507 64 8 0 55446 0
Current children cumulated CPU time (s) 25.42
Current children cumulated vsize (KiB) 223096

[startup+51.2072 s]
/proc/loadavg: 2.41 2.08 1.87 4/94 11776
/proc/meminfo: memFree=368016/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=450664 CPUtime=50.92
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 112419 0 0 0 5033 59 0 0 25 0 1 0 182140759 461479936 112397 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 112666 112397 64 8 0 112338 0
Current children cumulated CPU time (s) 50.92
Current children cumulated vsize (KiB) 450664

[startup+102.425 s]
/proc/loadavg: 2.77 2.23 1.93 4/94 11776
/proc/meminfo: memFree=14928/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=899332 CPUtime=101.83
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 224577 0 0 0 10061 122 0 0 25 0 1 0 182140759 920915968 224555 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530227 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 224833 224555 64 8 0 224505 0
Current children cumulated CPU time (s) 101.83
Current children cumulated vsize (KiB) 899332



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+105.095 s]
/proc/loadavg: 2.77 2.23 1.93 4/94 11776
/proc/meminfo: memFree=14992/2055920 swapFree=4170204/4192956
[pid=11775] ppid=11773 vsize=922300 CPUtime=104.47
/proc/11775/stat : 11775 (VALCSP) R 11773 11775 11166 0 -1 4194304 230310 0 0 0 10322 125 0 0 25 0 1 0 182140759 944435200 230288 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530274 0 0 4096 0 0 0 0 17 1 0 0
/proc/11775/statm: 230575 230288 64 8 0 230247 0
Current children cumulated CPU time (s) 104.47
Current children cumulated vsize (KiB) 922300

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 105.25
CPU time (s): 104.624
CPU user time (s): 103.224
CPU system time (s): 1.39979
CPU usage (%): 99.4057
Max. virtual memory (cumulated for all children) (KiB): 922300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 103.224
system time used= 1.39979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230310
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 6
involuntary context switches= 5572

runsolver used 0.101984 s user time and 0.376942 s system time

The end



Launcher Data (download as text)




Begin job on node20 on Tue Jan  9 10:11:02 UTC 2007


IDJOB= 235368
IDBENCH= 6762
FILE ID= node20/235368-1168337462

PBS_JOBID= 3503358

Free space on /tmp= 66555 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-95-8.xml
COMMAND LINE= /tmp/evaluation/235368-1168337462/VALCSP /tmp/evaluation/235368-1168337462/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-235368-1168337462 -o ROOT/results/node20/solver-235368-1168337462 -C 1800 -M 900  /tmp/evaluation/235368-1168337462/VALCSP /tmp/evaluation/235368-1168337462/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  014487bc1152992590afac1666edece7

RANDOM SEED= 820680281

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.216
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.216
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1091440 kB
Buffers:         31568 kB
Cached:         824808 kB
SwapCached:       2940 kB
Active:         319572 kB
Inactive:       590492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1091440 kB
SwapTotal:     4192956 kB
SwapFree:      4170204 kB
Dirty:            3148 kB
Writeback:           0 kB
Mapped:          77480 kB
Slab:            39000 kB
Committed_AS:  4662816 kB
PageTables:       2524 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66555 MiB



End job on node20 on Tue Jan  9 10:12:47 UTC 2007